FrankenPHP worker watch should explicitly watch "/app" to ensure reliable hot reload on Docker Desktop (Windows)

[romain2518]

Description

Hello,

I noticed that the default compose.override.yaml configuration uses:

environment:
  FRANKENPHP_WORKER_CONFIG: watch

However, this appears to be unreliable on Docker Desktop (Windows). Explicitly specifying the watched directory fixes the issue completely:

environment:
  FRANKENPHP_WORKER_CONFIG: "watch /app"

Environment

symfony-docker: latest version
OS: Windows 10
Docker Desktop: 4.59

Observed behavior

With the default config (watch):

PHP and Twig code changes are not detected

Changes are only applied:

• After restarting the container,
• After triggering a 500 error,

With explicit path (watch /app):

environment:
 FRANKENPHP_WORKER_CONFIG: "watch /app"

• Changes are detected immediately
• Hot reload works reliably

Additional notes

This change fully resolved the issue in my environment and does not appear to have any negative side effects.

Thanks for maintaining this excellent project!

[maxhelias]

Hello,

We can change for explicitly watch the app folder but I have the feeling that it's a workaround.
We need to be sure that is not a hidden issue from FrankenPHP @dunglas ?

[mateusfmello]

@maxhelias The problem must be related to the dungas/symfony-docker project, since the documentation clearly states that hot reload is enabled by default.

# Hot reload for Symfony

@romain2518 Thank you for discovering the temporary solution.